Vulcanizing apparatus



June' 22 1926.

w. H. FOSTER VULCANIZLING APPARATUS Filed May 14. 1923 I "or 3145mm Z ZzcZZJL [Ester GUM/Metr Patented June 22, 1926.

W'ADE H. FOSTER, OF BAD AXE, MICHIGAN.

VULCANIZING APPARATUS.

Application filed May 14, 1923.

The invention relates to vulcanizing apparatus and is particularly applicable to apparatus for vulcanizing repair work upon footwear, although it is apparent that the apparatus may be used for vulcanizing repair work upon other articles, such as inner tubes and the like. The invention has among its objects the provision of a vulcanizing apparatus in which the support for the pressure applying member may be positioned either in advance or iirrear oi the guide for the laterally extending arm oi" the support which carries the pressure applying member. The pressure applying member may exert pressure alternat vely in an upward, downward, or lnward d rection; the provision of a universally ad ustable pressure applying member adapted to cooperate with the work support or mold whereby the former may engage any portion 01 the surface or" the latter; and the provision of a simple form of soft pressure applying pad which is constructed to re tain the heat. With these and other objects in view, the invention resides in the novel features of construction and combinations and arrangements of parts as more fully hereinafter set forth.

In the drawings:

Figure 1 is a perspective view of: a vulcanizing apparatus embodying my invention;

Figure 2 is an end view thereof showing the upright rod for supporting the rear end oi the pressure applying arm;

Figure 3 is a longitudinal section therethrough;

Figure 1- is a central section through one of the pressure applying pads.

shown in the present instance, the work. support 1 is hollow mold designed particularly for use in vulcanizing repair work upon footwear such as rubber boots, 2 is a pipe connecting into the end oi the leg portion. of the mold for conducting steam thereinto, the longitudinal axes of the pipe and leg portion being substantially parallel; S is the support for the pressure applying member 1 having the upright arm 5 and the laterally extending arm 6. The upright arm is rotatably mounted upon the pipe 2 Serial No. 638,856.

near its outer end, and is adapted to be clamped thereto in its positions of rotat-ive adjustment. In detail, this arm has the semi-circular portion 7 and the lower end portion 7 the semi-circular portion engaging a side of the pipe. 8 is a clamp for securing the upright arm to the pipe, this clamp having the complementary semi-circular portion 9 and the lower end portion 10. The portions of the upright arm and clamp above the pipe are secured from separation by means of the bolt 11 passing therethrough, and the nut 12 threaded upon the bolt, while the lower end portions of the upright arm and clamp are adjustably moved toward each other by means of the link 13 embracing the same. For moving the link away from the pipe, there is the handle 14 pivoted upon the lower end portion 7 of the upright arm 5 and connected to the link by the rod 15.

Th laterally extending arm 6 comprises the rear rod 16 having a transverse aperture through its rear end for engagement in by l the reduced upper end 17 of the upright arm 5, there being sufficient clearance for the necessary degree of rocking of the rod relative to the upright arm, The aan also has the forward rod 18 which telescopically engages in the rear rod 16 and is held in both its positions of rotative and longitudinal adjustment by the hand wheel operated set screw 19 upon the rear rod and engageable with the forward rod. The pressure applying member 4: is adapted to cooperate with the mold 1 and has the stem 20 rotatably engaging in the socket 21 and secured thereto by the set screw 22. This socket in turn is pivotally mounted upon the front end of the forward rod 18 to be rotatable about an axis extending transversely thereof and is held in its positions of rotative adjustment by suitable means such as the wheel clamp 24 is a guide rotatably mounted upon the pipe 2 and adapted to copperate with the laterally extending arm 6. This guide and the upright arm 5 are positioned upon the pipe by means of the collars 25 fixedly secured to the pipe. This guide has the base 26 i to which t p all l rods 27 are p efer;-

fi issues-,2

abl threaded, these rods being spaced sutlicientlr apart to permit of the passage there between or the rear rod 16 of the laterally extending arm. The base is cla nped to the pipe 2 in its relatii'e positions ot rotatii'e idjustnient in the same manner tea "he upht arm 5 is elain ied to the pipe this base having); a semi-circular portion engagin one side of the pipe and a lower end portion, the semi-circular portion being friction-ally clamped upon the pipe by a Qlililll) 28 hariug a complementary semi-circular portion seeured at the upper side oi? the pine by means oi the bolt and nut 29 and 30 re spectircly, and at the lower side ot' the pipe by means of the linl: 31 which is adjustable through the handl 35? connected to the linl by the rod is a thr aded rod engaging the cross bar at the upper ends ot' the r0 adapter to engage the rear rod 16 to rotate the latter l'QlEltiYO to the upright in tr is a coil 'ing; connected to the or-ward end of the rear rod 16 and to the ar -i Cr u ion the cross bar for yieldably ma ntaining the rear rod in engagen'ient with the threaded men'ilier.

As shown particularl. in hi i' s closes the heat retaining body to torn ed grout d cured rubber and ground le proportions of rubber and lead being aiproxii'nately equal. il ith this construction the pad conforms readilv'to the contour of i the work and the heat conducted to the pad will be retained for a consider; ble period of time due to the composition ot' the body within the casing.

41 is an arm hi a transversely e);- euding' rear end pirotallr mounted at he e id of the lop; portion ot' the mold l and 'ransrersely extending forward l 9' beyond the toot end oi, the ll is a pad tor engaging the sole the we 'l-r, this pad being clamped inst by tie screw t? threadedly in; the end 4-3 and secured to t e pressure appl 'ing member 4- a, pad and has the conraie work bu. i

preferably formed ol sheet l d is imbedded in one wall of the casing: formed of green ri'ibber. Thi casing inhaud heel i re arrangement ot' the tl pos oned i. lillldt can he to the mold and pressi. ..'e up plying member that it will not interfere with the latter.

The support 1 may be pos ioned either to the right or left of the guide 24; i. e., rotatably in adra-nce'or in rear otthe supportwhereby the rod 16 ispinched or clamper' between the rods of the guide 94-. This t prevents side'slap or lost motion in the pressure applying member l, causing the 1 more directly in toward the "orlz', preventing slip ingot the patch be iron the above description it will be seen it the su iiport for the n'essure a )l una member aid us guide may be readily adjusted i the pipe 2. The support may or either in rotatable advance aide, whereby pressure ma 7 ii the j ressureapplying pad "rd. downward or inward directions it do pad is universally adjustable so that 't will fit any gortionv of the mold surface. l' urthermore that the pad is so constructed that will retain heat for a COLSlClEl'iblQ period time, thereby tacilitatinn' the ruleanizing oi the work, and also so constructed that it will conform to the oi that p rtion ot the mold being enga reth therebr aroiding' cutting the wo -k.

What e aim as ny invention is:

1. in a rulcanizing' apparatus, the combination with a hollow mold and a pipe for conducting heated fluid thereo, ot a pressure applying pad :u'lapted to cooperate with said mold, a sport for said pad ro- 7. fly mounted upon said pipe, and a guide ,aid si pport also rotatably mounted up i said support and guide bein;

'. in i \uleanizing apparatus, the comon nth a hollow mold, of a relatirelr binati movable p essure applying n'ieniber adapted I to cooperate therewith, and a rotatable Su port for said pressure applying:- member iai'ingr its axis of rotation suhstantiallr )arallel to the longitudinal axis of said mold.

.Qn a \ulcanii iinu apparatus, the combinatiou with a mold and :i ovliudriral lllCllll'JQi' at one end thereof. of a press r ineinber, a rod mounted upon said arnu a se end rod telescopically engaging'said iii-stmentioned rod, and a pressure applying member adapted to cooperate with said mold and rotatably mounted upon said secon -mentioned rod.

ZOO

16. In a vulea'nizing apparatus, the combination with a mold, of a pi'erisuie applying arm exiending substantially longitudinally 01" said mold, a pressure applying member carried by said arm at one end l'liereo'f and adapted to cooperation with said mold, a guide eon'lpi'ising a pair oi rods between which said rod passes, supporting means for the other end of said rod for posneer:

siiioning the latter end retaiably n auvanee or 111 rear of the support WllGl W the said 'ai'essui'e the said the said guide for applying a pi'essui'e on said pressure arm.

In testimony whei'eotf I afiix my signature.

supplying arm is clamped between guide rods, and means earned by -WADE H. 

